Gear Review: L.L.Bean Katahdin PrimaLoft Synergy 20

A synthetic sleeping bag with warm, generous cut.

[sweet deal]

One tester used this synthetic sack down to 17℉ in New Hampshire’s Whites, praising its warmth, generous cut, and reassuring durability. “I’d buy this bag in a minute,” he says. “But it’s heavy and bulky (18 x 9 inches) for ultralighters.”